Siemens RVA53.280 - Heating Circuit; Parallel Displacement of Heating Curve

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Siemens Building Technologies Basic Dokumentation RVA63.280, RVA53.280 CE1P2374E
Landis & Staefa Division 19.04.2001
Heating circuit
2.23 Parallel displacement of heating curve
Readjustment of room temperature setting, especially in plants without room sensor.
Produces a parallel displacement of the heating curve in order to achieve a better
match of heat generation and heat consumption.
Setting range Unit Factory setting
-4.5...+4.5 °C (K) 0.0
By changing the value entered, all room temperature setpoints will be appropriately
raised or lowered. This allows the room temperature setpoints to be matched to the
effective room temperatures.
If a nominal room temperature setpoint of 20 °C adjusted on the controller always
produces a room temperature of 22 °C, displace the heating curve downward by 2 °C.
Each setpoint readjustment, be it via the setting value or the operational level, is a
parallel displacement of the heating curve.
20 10 0 -10 -20
-30
90
80
70
60
50
40
30
°C
°C
2406D02
100
0
10
10
0
30
T
R
w
TA
TV
TV Flow temperature
TA Composite outside temperature
TRw Room temperature setpoint
Benefit
Description
Setting
Effect
Example
Parallel displacement